Question

a compound dissolves readily in water and conducts electricity only when it dissolves. this evidence suggests the compound is most likely a(n) ________
ionic
covalent
organic
classify the following compound mncl₃ as either ionic or covalent?
ionic
covalent
name the compound with the chemical formula hbr(aq).
hydrogen bromide
hydrobromic acid
bromic acid
bromate

Explanation:

• For the first question: Ionic compounds dissolve in water and conduct electricity in aqueous solution (due to the presence of ions). Covalent compounds (except some acids) do not conduct electricity well in solution (as they don't dissociate into ions easily). Organic compounds (a subset of covalent compounds in many cases) also do not conduct electricity like ionic compounds.
• For the second question: \(MnCl_3\) is composed of \(Mn^{3 +}\) (a metal ion) and \(Cl^{-}\) (a non - metal ion). Ionic compounds are formed between metals and non - metals (through electron transfer).
• For the third question: When a binary acid (like \(HBr\)) is in aqueous (\(aq\)) solution, it is named as hydro - [non - metal root] - ic acid. So \(HBr(aq)\) is hydrobromic acid. Hydrogen bromide (\(HBr\) in gas phase) is not in aqueous form. Bromic acid is \(HBrO_3\) and bromate is \(BrO_3^{-}\).

Answer:

1. ionic
2. ionic
3. hydrobromic acid